Alert archive / New Jersey / Flash Flood Warnings in 2021
Flash Flood Warning 19, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 14, 2021, 7:37 PM EDT for Monmouth County, New Jersey. It was in force for 3 hr. 7 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 14, 2021, 7:37 PM EDT (23:37 UTC)
- Expired
- Jul 14, 2021, 10:30 PM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
County Monmouth County, NJ
The radar
The Philadelphia radar (KDIX), 59 km from the middle of the area, began a volume at 23:39 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 14, 7:39 PM EDT | FLASH FLOOD | Union Beach, NJ | FLORENCE AVENUE CLOSED FROM FLOODING. ROAD HAS BECOME COMPLETELY INUNDATED. TIME BASED ON DISPATCH REPORT. |
| Jul 14, 7:41 PM EDT | FLASH FLOOD | 1 Wnw Middletown Twp, NJ | VEHICLES STUCK IN FLOOD WATERS ON ROUTE 35. TIME BASED ON DISPATCH REPORT. |
| Jul 14, 7:45 PM EDT | FLASH FLOOD | 1 Ene Union Beach, NJ | PARK AVENUE CLOSED AT OCEAN AVENUE. FLAT CREEK FLOODING AND GOING INTO A RESIDENCE. TIME BASED ON DISPATCH REPORT. |
| Jul 14, 7:45 PM EDT | FLASH FLOOD | Union Beach, NJ | FLOODING ON PINE STREET. PARK AVENUE AND PINE STREET CLOSED. TIME BASED ON DISPATCH REPORT. |
| Jul 14, 7:48 PM EDT | FLOOD | Hazlet Twp, NJ | FLOODING ON APPLETON DRIVE. TIME BASED ON DISPATCH REPORT. |
| Jul 14, 7:49 PM EDT | HEAVY RAIN 2.19 | 1 Ene Hazlet Twp, NJ | MESONET STATION FW7777 HAZLET. 1-HOUR PRECIPITATION TOTAL. |
| Jul 14, 8:30 PM EDT | FLOOD | 1 Nnw Middletown, NJ | FLOODING ON CLUBHOUSE DRIVE. TIME BASED ON DISPATCH REPORT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 11.6 hours before the alert went out and 116 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1588 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 506 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
As transmitted.
472
WGUS51 KPHI 142337
FFWPHI
NJC025-150230-
/O.NEW.KPHI.FF.W.0019.210714T2337Z-210715T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
737 PM EDT Wed Jul 14 2021
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Northeastern Monmouth County in central New Jersey...
* Until 1030 PM EDT.
* At 737 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 1.5 inches of
rain have fallen in as little as 30 minutes. Additional rainfall
amounts of 0.5 to 1 inch are possible in the warned area. Flash
flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Sandy Hook, Middletown, Red Bank, Keansburg, Matawan, Highlands,
Navesink, Lincroft, Keyport, Rumson, North Middletown, and
Strathmore.
This includes the following highways...
Garden State Parkway between mile markers 113 and 119.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 4036 7423 4044 7423 4045 7422 4044 7421
4045 7417 4045 7416 4046 7414 4042 7406
4042 7404 4040 7398 4048 7401 4047 7400
4043 7396 4035 7396
FLASH FLOOD...RADAR INDICATED
$$
CMS3 follow-up statements
025
WGUS71 KPHI 142357
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
757 PM EDT Wed Jul 14 2021
NJC025-150230-
/O.CON.KPHI.FF.W.0019.000000T0000Z-210715T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monmouth NJ-
757 PM EDT Wed Jul 14 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT THIS
EVENING FOR NORTHEASTERN MONMOUTH COUNTY...
At 757 PM EDT, local law enforcement reported flash flooding in the
Union Beach and Hazlet areas. Several roads are closed. Between 1.5
and 2.5 inches of rain have fallen in the past hour. Flash flooding
is already occurring.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Law enforcement reported.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
Some locations that will experience flash flooding include...
Sandy Hook, Middletown, Red Bank, Keansburg, Matawan, Highlands,
Navesink, Lincroft, Keyport, Rumson, North Middletown, and
Strathmore.
This includes the following highways...
Garden State Parkway between mile markers 113 and 119.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 4036 7423 4044 7423 4045 7422 4044 7421
4045 7417 4045 7416 4046 7414 4042 7406
4042 7404 4040 7398 4048 7401 4047 7400
4043 7396 4035 7396
FLASH FLOOD...OBSERVED
$$
CMS649
WGUS71 KPHI 150037
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
837 PM EDT Wed Jul 14 2021
NJC025-150230-
/O.CON.KPHI.FF.W.0019.000000T0000Z-210715T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monmouth NJ-
837 PM EDT Wed Jul 14 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT THIS
EVENING FOR NORTHEASTERN MONMOUTH COUNTY...
At 837 PM EDT, local law enforcement reported flash flooding across
the warned area. The most severely affected areas are between Union
Beach and Middletown, where several roads are closed. Flash flooding
is already occurring.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Law enforcement reported.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
Some locations that will experience flash flooding include...
Sandy Hook, Middletown, Red Bank, Keansburg, Matawan, Highlands,
Navesink, Lincroft, Keyport, Rumson, North Middletown, and
Strathmore.
This includes the following highways...
Garden State Parkway between mile markers 113 and 119.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4036 7423 4044 7423 4045 7422 4044 7421
4045 7417 4045 7416 4046 7414 4042 7406
4042 7404 4040 7398 4048 7401 4047 7400
4043 7396 4035 7396
FLASH FLOOD...OBSERVED
$$
CMS167
WGUS71 KPHI 150227
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
1027 PM EDT Wed Jul 14 2021
NJC025-150237-
/O.EXP.KPHI.FF.W.0019.000000T0000Z-210715T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monmouth NJ-
1027 PM EDT Wed Jul 14 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 1030 PM EDT THIS EVENING FOR
NORTHEASTERN MONMOUTH COUNTY...
Flood waters have receded. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 4036 7423 4044 7423 4045 7422 4044 7421
4045 7417 4045 7416 4046 7414 4042 7406
4042 7404 4040 7398 4048 7401 4047 7400
4043 7396 4035 7396
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 3:42 PM EDT | Special Weather Statement | PHI | Morris | 18 min |
| Jul 14, 5:47 PM EDT | Special Marine Warning | PHI | 43 min | |
| Jul 14, 5:54 PM EDT | Special Weather Statement | PHI | Ocean | 51 min |
| Jul 14, 6:41 PM EDT | Special Weather Statement | PHI | Monmouth | 34 min |
| Jul 14, 7:03 PM EDT | Special Marine Warning | PHI | 61 min | |
| Jul 14, 7:03 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 42 min |
| Jul 14, 7:24 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 36 min |
| Jul 14, 7:26 PM EDT | Areal Flood Advisory | PHI | Middlesex, Monmouth | 2 hr |
Nearby
Flash Flood Warnings in New Jersey, 2021Every flash flood warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.